The latest survey was conducted online within the United States between April 14-17, 2017 among 2,027 registered voters by The Harris Poll. The results reflect a nationally representative sample. Results were weighted for age within gender, region, race/ethnicity, marital status, household size, income, employment, and education where necessary to align them with their actual proportions in the population. Propensity score weighting was also used to adjust for respondents’ propensity to be online.
Where marked, the responses to some questions have been split sampled due to the length of the survey. Other questions in the poll have been added for academic research.
The Co-Directors of the Harvard-Harris Poll are:
Stephen D. Ansolabehere – Professor of Government and Director, Center for American Political Studies, Harvard University
Mark J. Penn – Visiting Lecturer, Harvard University & Managing Partner, The Stagwell Group
Dritan Nesho – Fellow, Harvard Institute for Quantitative Social Science
Together with their students at Harvard University.